While Sony Xperia Z1 features Sony’s award-winning “G Lens” with a 27mm wide angle and bright F2.0 aperture, custom made large 1/2.3-type CMOS image sensor Exmor RS for mobile with 20.7MP and a BIONZ for the mobile image processing engine. The combination of these technologies delivers the same level of quality and performance as a conventional compact digital camera in a slim, waterproof Smartphone.

Since both phone features high end cameras with their own capabilities, let's consider it as a tie. Let's look at other aspects of the phones which makes Sony Xperia Z1 a better phone than Nokia Lumia 1020.

5. Build quality and design

The bulging camera module on Nokia Lumia 1020's back won't look good and also it irritates while handling. The build and finish quality are certainly among the best in business, although we have to admit the design isn't as striking as it was nearly a year ago, when the Lumia 920 launched.

But Sony Xperia Z1 has the premium design and build quality. A solid one-piece aluminium frame with tempered glass on the front and back ensures beauty and durability.

4. Operating System

Sony Xperia Z1 runs on Android 4.2 Jelly Bean while Lumia 1020 runs on Winodws phone 8. Now a days Most of the people will prefer Android over iOS/Windows because of the versatile nature of the open source operating system Android. Thus the OS of Nokia Lumia 1020 can be its downside.

3. Waterproofing capabilities

Water-proof Smartphones is now a latest trend in the Smartphone industry. Everyone wants to check the mails or social networks even while bathing. The Z1 is IP55/IP58 rated and thus most of the customers tend to buy Z1 rather Lumia 1020.

2. Display

Nokia Lumia 1020 has 4.5" 720p AMOLED display which can't be compared with Sony Xperia Z1's 5" 1080p TRILUMINOUS display. The pixel density of Z1 is much higher than 1020. Thus the display is also one of the downsides of Lumia 1020.

1. Processor and Performance
Nokia Lumia 1020 is powered by Dual-core 1.5 GHz Krait Qualcomm MSM8960 Snapdragon processor. This is just bullshit, a $880 phone with just a dual core processor. A geek or a gamer will never consider to buy this phone.

But the Sony Xperia Z1 is the real the beast which is powered by 2.2GHz quad-core Qualcomm Snapdragon 800 processor which is the best in its class.

These were my TOP 5 features of the Sony Xperia Z1 which kills the sales of Nokia Lumia 1020. IF you want to add something to this list, Let me know in the comments below.